United Orthopedic Corporation

Liner Trial Placement After securing the prosthetic cup into the acetabular cavity, introduce a size-matched Acetabular Liner Trial 16,17 for trial reduction (Fig. 13). Make sure the orientation of the liner trial if a 20º lipped liner is desired. Laser mark on the acetabular cup aids in final positioning of the lipped liner (Fig. 14). Ensure the liner trial is well-fixed within the cup before a overall evaluation of joint biomechanics. Trial Reduction Following acetabular and femoral preparation, the trial reduction can be carried out. Trial heads with 28 mm, 32 mm, 36 mm and 40 mm diameters are available options for surgeons to select an optimized size, which corresponds to the implanted acetabular cup. Femoral heads with different neck length are also supplied for surgeons to make a proper determination and to revalidate preoperative decision. After final trial reduction, assessment of joint stability, range-of-motion, leg length and component size can be accomplished. 7 16. Acetabular Liner Trials C/N Varies by Sizes 17. Acetabular Liner Trials 20° C/N Varies by Sizes Fig. 13 Fig. 14